<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>Line drawing</title>
        <link rel="stylesheet" href="css/style.css">
    </head>
    <body>

        <div>
            <strong>PPI</strong>
            <div id="PPI" style="width: 300;">
                
            </div>
        </div>
        <style id="chart-style">
            text {
                fill: black;
                font: 20px sans-serif;
            }
        </style>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/mathjs/6.2.2/math.min.js"></script>
        <script src="//cdnjs.cloudflare.com/ajax/libs/queue-async/1.0.7/queue.min.js"></script>
        <script src="https://d3js.org/d3.v5.min.js"></script>
        <script src="js/ppi.js"></script>
    </body>
</html>